42244222 has 4 divisors (see below), whose sum is σ = 63366336. Its totient is φ = 21122110.

The previous prime is 42244217. The next prime is 42244229. The reversal of 42244222 is 22244224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 42244193 and 42244202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42244229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10561054 + ... + 10561057.

It is an arithmetic number, because the mean of its divisors is an integer number (15841584).

Almost surely, 2^42244222 is an apocalyptic number.

42244222 is a deficient number, since it is larger than the sum of its proper divisors (21122114).

42244222 is a wasteful number, since it uses less digits than its factorization.

42244222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21122113.

The product of its digits is 2048, while the sum is 22.

The square root of 42244222 is about 6499.5555232646. Note that the first 4 decimals coincide. The cubic root of 42244222 is about 348.2751105474.

Adding to 42244222 its reverse (22244224), we get a palindrome (64488446).

It can be divided in two parts, 422 and 44222, that added together give a palindrome (44644).

The spelling of 42244222 in words is "forty-two million, two hundred forty-four thousand, two hundred twenty-two".